Exterior wall openings of smoke exhaust pipes and air ducts can be paved with prefabricated concrete blocks with holes or left holes in embedded steel pipes.
Insulation wall (hollow brick) is installed in the same way as ordinary wall. If the wall is not firm, it should be strengthened with boards or other materials.
2. The smoke exhaust pipe of the range hood directly passes through the outer wall and leads to the outside, and the outdoor exhaust port should be provided with components to avoid wind and prevent environmental pollution.
* * * For range hoods connected with vertical flue, the section of vertical flue shall be determined according to the calculation of exhaust air volume.
3. The installation height of the top suction type should be at least 65 higher than that of the gas stove.
Height 65-75 cm
It is more suitable between centimeters.